Caffeine is a stimulant that causes narrowing of blood vessels (vasoconstriction).
Ergotamine is in a group of drugs called ergot alkaloids (ER-got AL-ka-loids). It works by
narrowing the blood vessels around the brain. Ergotamine also affects blood flow patterns that are
associated with certain types of headaches.
The combination of caffeine and ergotamine is used to treat or prevent a migraine type
headache.
This medication
will only treat
a headache that has already begun. It
will not prevent
migraine headaches or reduce the number of attacks.
Caffeine and ergotamine should not be used to treat common tension headaches or any
headache that seems to be different from your ususal migraine headaches.
Caffeine and ergotamine may also be used for other purposes not listed in this medication guide.